2021 Vauxhall Astra Griffin Turbo — MOT failures & pass rate
Across 5,388 MOT tests analysed for the 2021 Vauxhall Astra Griffin Turbo, the most common recorded failure areas were tyres, brakes and emissions & environmental. Its pass rate of 90.9% was in line with the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 16.1% in the 60-90k group versus 7.7% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.4% | 237 |
| 2 | Brakes | 3.3% | 175 |
| 3 | Emissions & environmental | 1.4% | 77 |
| 4 | Lighting & signalling | 1.1% | 59 |
| 5 | Visibility | 1.0% | 54 |
| 6 | Suspension | 0.3% | 17 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Brake pads | 198 |
| 2 | Malfunction indicator lamp | 72 |
| 3 | Tread depth | 58 |
| 4 | Washers | 46 |
| 5 | Headlamp aim | 42 |
| 6 | Brake discs | 20 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 19.1% | 1,028 |
| 2 | Brakes | 15.8% | 854 |
| 3 | Other defects | 4.8% | 259 |
| 4 | Suspension | 1.3% | 68 |
| 5 | Road wheels | 1.1% | 58 |
| 6 | Visibility | 1.1% | 57 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 3,760 | 7.7% |
| 30-60k | 1,544 | 12.3% |
| 60-90k | 81 | 16.1% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 2,634 | 9.1% |
| 2025 | 2,728 | 9.2% |
What to check before buying a 2021 Astra Griffin Turbo
Before buying a 2021 Vauxhall Astra Griffin Turbo, focus on the areas it most often fails on. Tyres accounted for 4.4% of tests for this year.
- Tyres (4.4% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Brakes (3.3% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Emissions & environmental (1.4% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2021 Vauxhall Astra Griffin Turbos pass their MOT?
90.9% of the 5,388 2021 Vauxhall Astra Griffin Turbo MOT tests in this dataset passed — a 9.1% fail rate.
What is the most common MOT failure on a 2021 Vauxhall Astra Griffin Turbo?
Tyres, recorded in 4.4% of tests, followed by brakes (3.3%).
Does the 2021 Astra Griffin Turbo get worse with mileage?
Its MOT fail rate rises from 7.7% in the 0-30k band to 16.1% in the 60-90k band.
Methodology & source. Based on 5,388 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.